EP1462650A3 - Control valve for variable displacement compressor - Google Patents

Control valve for variable displacement compressor Download PDF

Info

Publication number
EP1462650A3
EP1462650A3 EP04005114A EP04005114A EP1462650A3 EP 1462650 A3 EP1462650 A3 EP 1462650A3 EP 04005114 A EP04005114 A EP 04005114A EP 04005114 A EP04005114 A EP 04005114A EP 1462650 A3 EP1462650 A3 EP 1462650A3
Authority
EP
European Patent Office
Prior art keywords
valve
pressure
variable displacement
spool valve
displacement compressor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP04005114A
Other languages
German (de)
French (fr)
Other versions
EP1462650A2 (en
Inventor
Ryosuke Yoshihiro
Morimitsu Kajiwara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TGK Co Ltd
Original Assignee
TGK Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by TGK Co Ltd filed Critical TGK Co Ltd
Publication of EP1462650A2 publication Critical patent/EP1462650A2/en
Publication of EP1462650A3 publication Critical patent/EP1462650A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/14—Control
    • F04B27/16—Control of pumps with stationary cylinders
    • F04B27/18—Control of pumps with stationary cylinders by varying the relative positions of a swash plate and a cylinder block
    • F04B27/1804—Controlled by crankcase pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/14—Control
    • F04B27/16—Control of pumps with stationary cylinders
    • F04B27/18—Control of pumps with stationary cylinders by varying the relative positions of a swash plate and a cylinder block
    • F04B27/1804—Controlled by crankcase pressure
    • F04B2027/1822—Valve-controlled fluid connection
    • F04B2027/1827—Valve-controlled fluid connection between crankcase and discharge chamber
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/14—Control
    • F04B27/16—Control of pumps with stationary cylinders
    • F04B27/18—Control of pumps with stationary cylinders by varying the relative positions of a swash plate and a cylinder block
    • F04B27/1804—Controlled by crankcase pressure
    • F04B2027/184—Valve controlling parameter
    • F04B2027/1854—External parameters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B27/00—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders
    • F04B27/08—Multi-cylinder pumps specially adapted for elastic fluids and characterised by number or arrangement of cylinders having cylinders coaxial with, or parallel or inclined to, main shaft axis
    • F04B27/14—Control
    • F04B27/16—Control of pumps with stationary cylinders
    • F04B27/18—Control of pumps with stationary cylinders by varying the relative positions of a swash plate and a cylinder block
    • F04B27/1804—Controlled by crankcase pressure
    • F04B2027/184—Valve controlling parameter
    • F04B2027/1859—Suction pressure

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)
  • Control Of Positive-Displacement Pumps (AREA)

Abstract

In a control valve for a variable displacement compressor, a valve section 10 for controlling the refrigerant flow rate at discharge pressure Pd to supply refrigerant at a control pressure Pc to a crankcase is implemented by a spool valve structure. A spool valve element 15 and a coaxial shaft 18 are configured such that the spool valve element 15 and the shaft 18 oppositely receive the discharge pressure Pd and the suction pressure Ps, respectively. The differential pressure between the discharge pressure Pd and suction pressure Ps, which is to be controlled, is set by a duty ratio controlled solenoid section 20. The spool valve element 15 performing micro vibrations due to duty ratio control is prevented from colliding against a valve seat 16 when it is close to the valve-closing position, so that it is possible to enhance the valve lift characteristics, and to improve durability of valve component parts.
EP04005114A 2003-03-28 2004-03-04 Control valve for variable displacement compressor Withdrawn EP1462650A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2003089841A JP2004293497A (en) 2003-03-28 2003-03-28 Control valve for variable displacement compressor
JP2003089841 2003-03-28

Publications (2)

Publication Number Publication Date
EP1462650A2 EP1462650A2 (en) 2004-09-29
EP1462650A3 true EP1462650A3 (en) 2006-07-05

Family

ID=32821575

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04005114A Withdrawn EP1462650A3 (en) 2003-03-28 2004-03-04 Control valve for variable displacement compressor

Country Status (3)

Country Link
US (1) US20040191078A1 (en)
EP (1) EP1462650A3 (en)
JP (1) JP2004293497A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4118181B2 (en) * 2003-03-28 2008-07-16 サンデン株式会社 Control valve for variable displacement swash plate compressor
JP2006083837A (en) * 2004-08-19 2006-03-30 Tgk Co Ltd Variable displacement compressor control valve
JP2007071114A (en) * 2005-09-07 2007-03-22 Sanden Corp Variable displacement compressor for air-conditioning system for vehicle
JP2008157031A (en) * 2006-12-20 2008-07-10 Toyota Industries Corp Electromagnetic displacement control valve in clutchless variable displacement type compressor
US8662039B2 (en) 2011-03-16 2014-03-04 Delphi Technologies, Inc. Camshaft phaser with coaxial control valves
US10378536B2 (en) * 2014-06-13 2019-08-13 Clark Equipment Company Air compressor discharge system
JP6663227B2 (en) * 2016-01-19 2020-03-11 サンデン・オートモーティブコンポーネント株式会社 Displacement control valve for variable displacement compressor
WO2018180784A1 (en) * 2017-03-28 2018-10-04 イーグル工業株式会社 Capacity control valve
US11536389B2 (en) 2017-08-28 2022-12-27 Eagle Industry Co., Ltd. Electromagnetic valve

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1091124A2 (en) * 1999-10-04 2001-04-11 Fujikoki Corporation Control valve for variable capacity compressors
EP1098091A2 (en) * 1999-11-05 2001-05-09 TGK Co., Ltd. Flow rate control for a compressor in a refrigeration cycle
EP1279831A2 (en) * 2001-07-25 2003-01-29 TGK CO., Ltd. Variable displacement compressor and displacement control valve for variable displacement compressor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2945748B2 (en) * 1990-11-16 1999-09-06 サンデン株式会社 Variable capacity oscillating compressor
JP2001132632A (en) * 1999-11-10 2001-05-18 Toyota Autom Loom Works Ltd Control valve of variable displacement compressor
JP4205826B2 (en) * 1999-11-30 2009-01-07 株式会社不二工機 Control valve for variable displacement compressor
JP3942851B2 (en) * 2001-07-31 2007-07-11 株式会社テージーケー Capacity control valve

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1091124A2 (en) * 1999-10-04 2001-04-11 Fujikoki Corporation Control valve for variable capacity compressors
EP1098091A2 (en) * 1999-11-05 2001-05-09 TGK Co., Ltd. Flow rate control for a compressor in a refrigeration cycle
EP1279831A2 (en) * 2001-07-25 2003-01-29 TGK CO., Ltd. Variable displacement compressor and displacement control valve for variable displacement compressor

Also Published As

Publication number Publication date
EP1462650A2 (en) 2004-09-29
JP2004293497A (en) 2004-10-21
US20040191078A1 (en) 2004-09-30

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